So I basically encountered a "nail in the coffin" situation with the IRCC agents today;
I emailed the Mississauga office email last week regarding my oath status and my good time it got escalated to the supervisor.. Therefore I got an email yesterday as a follow-up saying my file has been GRANTED and I will be scheduled for oath shortly. So, I called the 1800 number to see what the agents finally have to say.. And guess what... they say the same old stuff that though I have everything completed that my app is still IN-PROCESS.
Now, I thoroughly believe we will even get updates even before the IRCC call centre agents do (I experienced the same thing when I inquired about BG check). I really think there is absolutely no point in inquiring with the agents for an update unless maybe you get MP involved as you pass the processing time.